Holly Montag gave birth to son Isaiah Hawk Wilson on May 3. Credit: Splash News

Imagine having Spencer Pratt for an uncle! Former Hills star Holly Montag welcomed her first child with her husband Richie Wilson on Sunday, May 3, a source confirms to Us Weekly. 

Heidi Montag’s older sis, 31, named her 7-pound, 5-ounce baby boy Isaiah Hawk Wilson

Montag married Wilson in September 2014, and the couple announced their first pregnancy in January. Little Isaiah’s famous aunt has been overjoyed by her sister’s pregnancy. 

But Heidi recently told Us Weekly that seeing her sister’s challenging pregnancy has made her “actually kind of the opposite [of wanting kids].”

“I was like, ‘I think I can put this off for a little bit because you look REALLY uncomfortable,” Heidi told Us back in March. “I was like, ‘I’m three years younger. Maybe I can wait three more years to catch up.’”